C550 Martial Arts to Prove One's Heart One's Previous Parents?

Heart-to-heart.

This was the last barrier to breaking through the Extreme Martial Stage.

When a cultivator incinerates his fleshly body with unparalleled fire before stepping onto the grand dao with miraculous inspiration … They now had the conditions to prove their loyalty!

And, what was proof of the heart? It had to be known that any martial artist would have a heart of martial arts